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Finding the Fourth Proportional to 160,125.55, 220,974.14 and 87,528.55

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Solution

The fourth proportional to 160,125.55, 220,974.14 and 87,528.55 is: 120,789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,125.55 : 220,974.14 = 87,528.55 : x
  2. Step 2: Convert to fraction form
    160,125.55/220,974.14 = 87,528.55/x
  3. Step 3: Cross multiply
    160,125.55x = 220,974.14 × 87,528.55
  4. Step 4: Simplify right side
    160,125.55x = 19,341,546,061.70
  5. Step 5: Solve for x
    x = 19,341,546,061.70/160,125.55
  6. Step 6: Final answer
    x = 120,789.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.